142609621 has 8 divisors (see below), whose sum is σ = 177799104. Its totient is φ = 111124320.

The previous prime is 142609619. The next prime is 142609631. The reversal of 142609621 is 126906241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142609621 - 2¹ = 142609619 is a prime.

It is a super-3 number, since 3×142609621³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142609631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925960 + ... + 926113.

It is an arithmetic number, because the mean of its divisors is an integer number (22224888).

Almost surely, 2^142609621 is an apocalyptic number.

142609621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142609621 is a deficient number, since it is larger than the sum of its proper divisors (35189483).

142609621 is a wasteful number, since it uses less digits than its factorization.

142609621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852091.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 142609621 is about 11941.9270220513. The cubic root of 142609621 is about 522.4558646511.

The spelling of 142609621 in words is "one hundred forty-two million, six hundred nine thousand, six hundred twenty-one".